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Loans Payable (Schedule of Loans Payable) (Details) - USD ($)
Mar. 31, 2016
Mar. 29, 2016
Dec. 04, 2015
Dec. 03, 2015
Jun. 30, 2015
Jun. 11, 2015
Debt Instrument [Line Items]            
Outstanding balances $ 25,817,000       $ 24,091,000  
Line of Credit | SIC III Line Of Credit Note            
Debt Instrument [Line Items]            
Total facility amount 20,000,000          
Outstanding balances 19,666,000       19,516,000  
Line of Credit | Line of Credit Grid Note            
Debt Instrument [Line Items]            
Total facility amount 10,000,000         $ 10,000,000
Outstanding balances 4,563,000   $ 4,563,000 $ 8,675,000 3,000,000  
Line of Credit | Secured Revolving Loan            
Debt Instrument [Line Items]            
Outstanding balances 1,500,000       0  
Line of Credit | Secured Revolving Line of Credit            
Debt Instrument [Line Items]            
Total facility amount 500,000 $ 500,000        
Outstanding balances 88,000       0  
Unsecured Debt | Unsecured Demand Loans            
Debt Instrument [Line Items]            
Debt issue amount 0       1,575,000  
Outstanding balances $ 0       $ 1,575,000